[API reference](https://evolu.dev/docs/api-reference) › [@evolu/sqlite-wasm](https://evolu.dev/docs/api-reference/sqlite-wasm) › [c-api](https://evolu.dev/docs/api-reference/sqlite-wasm/c-api) › sqlite3\_uri\_boolean

```ts
function sqlite3_uri_boolean(
  deps: SqliteWasmDep,
): (z: 0 | SqliteFilenamePtr, zParam: CStringPtr, bDefault: number) => number;
```

Defined in: [packages/sqlite-wasm/src/CApi.ts:2954](https://github.com/evoluhq/evolu/blob/bc4578a260dd15d5bbf94b83765ca05984d194cb/packages/sqlite-wasm/src/CApi.ts#L2954)

Returns 1 when a filename's URI query parameter is yes, true or on in any
case or starts with a non-zero number, 0 when it is no, false or off or
starts with zero, and whether bDefault is non-zero otherwise, including for a
NULL filename.

Wasm type `i(iii)`. Signature `["sqlite3_uri_boolean", "int",
"sqlite3_filename", "string", "int"]` from SQLite's table.

See https://sqlite.org/c3ref/uri_boolean.html.